title: 3,4-Di-methyl-thieno[2,3-b]thio-phene-2,5-dicarbo-nitrile.
abstract: The asymmetric unit of the title compound, C10H6N2S2, contains two crystallographically independent but conformationally similar mol-ecules. The fused thio-phene ring cores are almost planar [maximum deviation = 0.027 (3) Å] with the thio-phene rings forming dihedral angles of 0.5 (4)° in one mol-ecule and 1.91 (4)° in the other. The crystal packing is stabilized only by van der Waals inter-actions.
authors.affiliation: Department of Chemistry, College of Science, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia.
authors.forename: Yahia Nasser
authors.initials: YN
authors.lastname: Mabkhot
authors.forename: S S
authors.initials: SS
authors.lastname: Al-Showiman
authors.forename: Assem
authors.initials: A
authors.lastname: Barakat
authors.forename: M Iqbal
authors.initials: MI
authors.lastname: Choudhary
authors.forename: Sammer
authors.initials: S
authors.lastname: Yousuf